Probing Specific Feature Types; Probing Points - HEIDENHAIN ND 1300 Operating Instructions Manual

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QC-300 Series User's Guide

Probing specific feature types

While the probing process is essentially the same for all feature types, the minimum number of points
required and the geometric placement of these points are different. The unique requirements for probing
each feature type are described in the remainder of this section.

Probing points

A minimum of one probed point is required to measure a point.
Multiple points can be probed if the feature location is indistinct
and it is considered a benefit to use the geometric average of many
probed locations.
When a single point is probed, Measure Magic will correctly recog-
nize a point and assign the correct feature. However, when multiple
A single point is probed to measure
points are probed, it is possible that the wrong feature type will be
a point
assigned. If the wrong feature type is assigned, it can easily be
changed by selecting the correct feature from a menu of alternatives in the DRO window.
Touch the feature type... to display the menu of alternative Probed points are shown in the
types View window
Measurement results are shown in the Feature list, View window and DRO window. The feature graphic in
the View window shows the feature and the points used to define it. Errors are shown as whiskers connect-
ing the probed points to the feature. The maximum errors are shown in red and are used in the calculation
of form. The DRO window shows the number of points used, the form and the coordinate location of the
feature. When only one point is probed, the form error is zero. When more than one point is probed, the
form error is the sum of the two greatest opposing error magnitudes.